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Compressor Failure

Replaced compressor and Reversing valve on 3 ton Gibson. Pilot line broke off on valve and compressor shorted starting with no R-22. Now 2 mos later the compressor sounds like it has a mouth full of marbles. How much bad luck can one customer have?
I added a bi flow dryer not on orginal install, used Nitrogen during reassembly
pulled a good vaccum ( with micron gage attached ) am I overlooking something?or is it just bad luck?

I'll put a suction line drier right before it goes into the compressor if it was a bad burnout. Especially on a heat pump. You need to check the entire system very well to determine what might have caused the compressor to go out so soon again. Somethings going on. It might have been a bunk compressor, probably not, but you never know. I got a bunk replacement compressor once. Changed it again after checking out system and haven't been back in 4 years for the compressor.

??

I didn't install this unit , just ended up with it . The unit is a 12 seer Gibson Heat pump. I'm not certain why the unit was replaced, HO said they replaced line sets , really didn't look that way to me. I saw plenty of problems I really didn't like with the install , no Biflow dryer, return too small , disconect not very safe. orginal failure pilot line broke off Reversing valve, ( gibson/ nordine seems to have had a problem with that , unit tried to start with no R-22 compressor shouts out, I replaced details in first post, now 2 mos later compressor seems to have a bad bearing.

Changed the return..

I changed the Return @ 1st Failure, I'm not going to knowing leave a problem with any unit unless the HO just refuses my advice. I just want to be as certain as I can that its not something I may have overlooked that caused the compress to fail, first times kinda straight forward, compressors short out when started with no r-22, the second, maybe just a crappy compressor, not common of a Copeland Scroll But still possible, just trying to do all that I can to insure it doesn't reoccure.